Dahab M. M.1, Koko W. S.1, Osman E. E.2 and Hilali A. H. M.3
1Microbiology Department, Pure and Applied Sciences, International University of Africa, Khartoum, Sudan.
2Medicinal and Aromatic Plants Research Institute, National Centre for Research, Khartoum, Sudan.
3Biology Department, University College, Umm Elqura University, Makka Elmukaramma, Kingdom of Saudi Arabia.
